<?php
/**
 * @author jy625
 */
namespace Weixinpay;
class MD5SignUtil {
	function sign($content, $key) {
		try {
			if (null == $key) {
				throw new \Think\Exception( "签名key不能为空！" . "<br>" );
			}
			if (null == $content) {
				throw new \Think\Exception( "签名内容不能为空" . "<br>" );
			}
			$signStr = $content . "&key=" . $key;

			return strtoupper ( md5 ( $signStr ) );
		} catch ( SDKRuntimeException $e ) {
			die ( $e->errorMessage () );
		}
	}
	function verifySignature($content, $sign, $md5Key) {
		$signStr = $content . "&key=" . $md5Key;
		$calculateSign = strtolower ( md5 ( $signStr ) );
		$tenpaySign = strtolower ( $sign );
		return $calculateSign == $tenpaySign;
	}
}
?>